Cyber End Dragon is formed from a Fusion of 3 Cyber Dragons, and is indeed a powerful card. It inflicts the difference between its ATK and its opponent's DEF as Direct Damage. It can be summoned in a variety of ways. Polymerization is the old school method. But Fusion Gate, Cyber-Stein, and Power Bond will also summon it. It can also be used with Limiter Removal, doubling its attack, although Power Bond will provide that also. Date: February 16, 2006